On Mon, 14 Jan 2019, Kai-Heng Feng wrote: > A Goodix touchpad doesn't work. Touching the touchpad can trigger IRQ > but there's no input event from HID subsystem. > > Turns out it reports some invalid data: > [ 22.136630] i2c_hid i2c-DELL091F:00: input: 0b 00 01 00 00 00 00 00 00 00 00 > > After some trial and error, it's another device that doesn't work well > with ON/SLEEP commands. Disable runtime PM to fix the issue. Thanks, I've now applied the patch to for-5.0/upstream-fixes. I am wondering though we are we seeing these at all - do other OSes not do the runtime PM on i2c at all? -- Jiri Kosina SUSE Labs